binman: Allow external binaries to be missing
Sometimes it is useful to build an image even though external binaries are
not present. This allows the build system to continue to function without
these files, albeit not producing valid images.
U-Boot does with with ATF (ARM Trusted Firmware) today.
Add a new flag to binman to request this behaviour.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/tools/binman/control.py b/tools/binman/control.py
index dc1dd2a..8c6eae8 100644
--- a/tools/binman/control.py
+++ b/tools/binman/control.py
@@ -387,7 +387,7 @@
def ProcessImage(image, update_fdt, write_map, get_contents=True,
- allow_resize=True):
+ allow_resize=True, allow_missing=False):
"""Perform all steps for this image, including checking and # writing it.
This means that errors found with a later image will be reported after
@@ -402,8 +402,10 @@
the contents is already present
allow_resize: True to allow entries to change size (this does a re-pack
of the entries), False to raise an exception
+ allow_missing: Allow blob_ext objects to be missing
"""
if get_contents:
+ image.SetAllowMissing(allow_missing)
image.GetEntryContents()
image.GetEntryOffsets()
@@ -523,7 +525,8 @@
images = PrepareImagesAndDtbs(dtb_fname, args.image,
args.update_fdt)
for image in images.values():
- ProcessImage(image, args.update_fdt, args.map)
+ ProcessImage(image, args.update_fdt, args.map,
+ allow_missing=args.allow_missing)
# Write the updated FDTs to our output files
for dtb_item in state.GetAllFdts():